#include <stdio.h>

int is_leap_year(int y)
{
	return (((y%4==0)&&(y%100!=0))||(y%400==0));
}

int main()
{
	int y=0;
	int m=0;
	int d=0;
	int days[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
	while(scanf("%d%d",&y,&m)==2)
	{
		int d=days[m];
		if((is_leap_year(y)==1)&&(m==2))
		{
			d++;
		}
		printf("%d\n",d);
	}
	return 0;
}